Street food catering trailer

Hi
I am not sure about this but perhaps reading the following link might help, or contact a lawyer.

https://www.gibraltar.gov.gi/on-business/licences

A short extract

Trade Licence

Any person wishing to buy or sell any product by way of business, whether wholesale or retail, as well as engage in certain commercial activities, is required to be licensed under the Trade Licensing Act 1978. A Trade Licence is also necessary to obtain a Customs code for the importation of goods in commercial quantities.

Commercial Activities that require a Trade Licence

• Building Contracting
• Carpentry
• Electrical Contracting
• Decorating
• Hairdressing
• Manufacturing
• Joinery
• Painting
• Woodwork
• Property Development
• Plumbing
• Catering*   

*Catering includes canteens, caterers, clubs, hoteliers, and publicans

My advice is to give yourself PLENTY of time...  Registering a business name takes long enough, then you've H&S, environments agency, not sure what else in your sector!  If you decide to go ahead I can recommend a lawyer there to help you along.  He's very informed.

All the best!